<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=us-ascii"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD> <BODY> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>A customer of mine has a "hydraulic" artist bench.  The lever on the side does nothing to make it move up or down.  It has what appears to be an air chamber (reservoir) on the underside as it has what looks like a valve stem attached to it.  </FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>1.  Is this thing really "hydraulic" or is it pneumatic?</FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>2.  If pneumatic, does anyone know how much pressure belongs in that reservoir?</FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>3.  Is there any sort of repairs that a person can do to this bench mechanism to make it function again?</FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006></SPAN> </DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>I can send a photo privately to anyone that is familiar with this bench if that would help.</FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006></SPAN> </DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>John Fortiner</FONT></SPAN></DIV> <DIV><SPAN class=468093814-10032006><FONT face=Arial size=2>Billings, MT</FONT> </SPAN></DIV></BODY></HTML>